Power Electronics / Power Management


Latest Articles

Motor control system makes trains more reliable
9 August 2006
Developed by Siemens rail technology experts in Erlangen, Germany, for controlling the drive motors of rail vehicles, the Sitrac system requires fewer sensors, a design factor that reduces downtime of ...

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Heatsinking aluminium cases for electronics
9 August 2006, Electrocomp
Extracting the heat from electronic components on PCBs that have been pushed into cases, or which have to be firmly installed, is often rather difficult due to the fact that appropriate cases are not ...

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High-frequency DC-DC converter reduces external components required
9 August 2006
STMicroelectronics has introduced an advanced high-frequency step-down DC-DC converter for applications that require high efficiency, small size, and light weight. The new ST1S06 integrates functions ...

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Controller improves efficiency and compactness of resonant converters while lowering noise emissions
26 July 2006
An advanced double-ended controller specifically designed for the series-resonant half-bridge topology for power supplies, has been introduced by STMicroelectronics. Offering a multitude of functions, ...

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Constant current LED drivers deliver fixed 100 mA output
26 July 2006, Communica
High voltage analog and mixed-signal IC provider, Supertex, has introduced two linear, constant current, LED drivers with fixed output currents of 100 mA. The CL6 and CL7 devices are ideally suited for ...

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212 W AC/DC switcher said to be a first for small size
26 July 2006, Vepac Electronics
XP Power has announced that it has brought together a series of proven power supply design techniques in a new and innovative way to create the world's smallest 212 W, single output AC/DC switcher dubbed ...

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Single and dual segment EL lamp drivers
26 July 2006, Communica
Supertex' new HV835 and HV857L low noise electroluminescent (EL) lamp driver ICs are designed to drive EL lamps for handheld devices such as mobile phones, PDAs, global positioning systems, and other ...

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New simulation models for power management devices
12 July 2006
Intersil has added another three new models to its iSim library. Models for the ISL8104 and ISL8105, ISL8105A are now available. iSim is an applications-based simulator that features Intersil Power Management ...

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Stable chip trimmer capacitors with high heat resistance
12 July 2006
Murata's TZY2 Series is an ultra-compact and low-profiled trimmer capacitor, with outside dimensions of 2,5 x 3,2 x 1,25 mm (W x L x H). Nominal values range from 1,0 to 45 pF although high capacitance ...

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Compact medical AC/DC switchers offer flexibility and reliability
12 July 2006, Vepac Electronics
XP Power's latest medical, low-profile, AC/DC switchers, the PBM200 (200 W) and PBM300 (300 W), combine the flexibility of up to four outputs with an MTBF of over 300 000 hours (MIL-HDBK-217F at 25°C) ...

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Power meter IC family expanded
12 July 2006, Electrocomp, CST Electronics
Teridian Semiconductor's new 71M6521 metering product family incorporates its single converter technology with a 22 bit delta-sigma converter, four analog inputs (two phases), digital temperature compensation, ...

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Reference design for efficient 60 W power adapters
12 July 2006
ON Semiconductor's 5th GreenPoint reference design is intended for 60 W power adapters used to power LCD TVs and monitors, notebooks and other consumer products. This reference design addresses the sometimes ...

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Quad power supply sequencer and supervisor
12 July 2006
Multiple supply systems often require turn-on and turn-off sequencing of supplies to protect vital circuits from damage and to allow for programmable logic boot-up and configuration. The LTC2928 quad ...

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600 mA DC-DC stepdown converters for portable consumer electronics
28 June 2006
The NCP1521 and NCP1522 are 600 mA DC-DC stepdown converters from ON Semiconductor, optimised for portable applications powered from one cell Li-ion or three cell alkaline/NiCd/ NiMH batteries. The ...

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PCB series, 60 W power supplies for medical/industrial uses
28 June 2006, Current Automation
Mean Well has launched its first 4" x 2" (102 x 51 mm) PCB-type switching power supply - the RPS/D/T-60 series - which targets medical and IT applications with miniature size requirements. The 5" x ...

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Very small DC-DC converter supports demanding load swings
28 June 2006, Hi-Q Electronics
Designers of portable devices continue to expand their feature set and in the process move to higher performance processors that demand increased levels of power. By mounting an 800 mA DC-DC converter ...

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300 VIN high-density DC-DC converters added to range
28 June 2006
Vicor has added seven mid-power Micro DC-DC converters to its high-density 300 V d.c. input family: two 50 W models, one at 3,3 Vout and 5 Vout, and five 75 W models at 12, 15, 24, 28, and 48 Vout. The ...

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Chargers for lead-acid batteries have 'intelligent' operation
28 June 2006, Current Automation
Mean Well has launched two new product series in its AC/DC charger line. The PB-300 and PB-360 are 300 W and 360 W battery chargers for lead-acid batteries. Featuring optimal 3-stage charging characteristics ...

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Ultrafast rectifiers reduce power losses
28 June 2006
Vishay Intertechnology has added a pair of new ultrafast rectifier devices to its range that have extremely fast reverse and forward recovery times and low forward voltage drop. The new 8 A, 600 V UH8JT ...

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Lithium polymer rechargeable batteries are energy dense yet safe
14 June 2006, Altron Arrow
Across the world, today's consumer electronics market is moving towards the development of portable miniature digital devices such as Bluetooth wireless headsets, MP3 players and other mobile electronic ...

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